Introducing the MongoDB Document

MongoDB is a document database. As such, the data is stored as individual documents. A document is a data structure made up of one or more field/value pairs.

Kickstart the year with our free Livestream! Navigating the database landscape in 2024

The key finding from our annual ‘State Of’ survey is that there’s a need for skill diversification to keep up with the pace of technological advances in IT world.

How will this skills gap affect you?

Whether you’re just starting out in your career, you’re a seasoned data professional or you’re a senior IT leader wanting to stay ahead of business growth, join our free livestream on January 23rd.

Redgaters Steve Jones, Ryan Booz and Beca Parker will introduce key findings from the survey and offer their thoughts on the big changes coming in 2024 and what you can do to thrive in this changing landscape.

Two-Dimensional Interval Packing Challenge

Packing intervals is a classic SQL task that involves packing groups of intersecting intervals to their respective continuous intervals. In mathematics, an interval is the subset of all values of a given type, e.g., integer numbers, between some low value and some high value.

A Simple Method to Load Excel Data

Learn how a C# script can easily load data from Excel into SQL Server.

Eager Aggregation in SQL queries

Aggregation is a widely used way to summarize the content of a database. It is usually expressed with GROUP BY clause or just using aggregate functions (like COUNT or SUM). When the database engine executes a query with aggregations, it produces individual rows need to compute the required output and then performs the aggregation as (almost) last step. We discuss in this article how to re-write a query manually so that the order of operations will be different and when it can be beneficial.

Dimensional Modelling Case Study Part 1 - Age Group

Learn how you can handle dimensional modeling in a data warehouse when your data uses different categorization for ages.

Counting more efficiently

Nearly a decade ago, I wrote a post called “Bad habits : Counting rows the hard way.” In that post, I talked about how we can use SQL Server’s metadata to instantly retrieve the row count for a table.

Adding Cookie Consent to SQL Server Central

We are adding a consent form to the SQL Server Central website to allow our cookies.

An In-Depth Look at MIXED_PAGE_ALLOCATION and Changes in Page Allocation

Learn about the benefits of mixed extent allocation in SQL Server 2016, along with how you can check this setting or enable it in your database.

Connecting SQL Server to SaaS applications with a Linked Server

But nowadays, most services are in the cloud. They're not on your servers; they're somewhere else. With most software-as-a-service (SAAS) offerings, you don't have many options to configure connectivity. What if you need data from one SaaS service into another?